Hot in Parts of the West; Cold Blast Coming to the Central U.S.
Hot to extremely hot temperatures are in place much of this week across parts of California and the interior Northwest U.S. A blast of cold air will drop across the central and eastern U.S. later this week bringing below to well below normal temperatures. Read More >
Current conditions at
San Marcos, San Marcos Municipal Airport (KHYI)
Lat: 29.89°NLon: 97.86°WElev: 597ft.
Partly Cloudy
88°F
31°C
| Humidity | 52% |
| Wind Speed | N 7 mph |
| Barometer | 29.96 in (1013.8 mb) |
| Dewpoint | 68°F (20°C) |
| Visibility | 10.00 mi |
| Heat Index | 92°F (33°C) |
| Last update | 1 Sep 7:56 pm CDT |
Extended Forecast for
4 Miles SW San Marcos TX
Tonight
Low: 72 °F
Partly Cloudy
Tuesday
High: 93 °F
Sunny
Tuesday Night
Low: 71 °F
Mostly Clear
Wednesday
High: 96 °F
Sunny
Wednesday Night
Low: 69 °F
Mostly Clear
Thursday
High: 98 °F
Sunny
Thursday Night
Low: 72 °F
Partly Cloudy
Friday
High: 97 °F
Mostly Sunny
Friday Night
Low: 73 °F
Mostly Cloudy
Detailed Forecast
Tonight
Partly cloudy, with a low around 72. Northeast wind around 5 mph becoming calm.
Tuesday
Sunny, with a high near 93. North northeast wind around 5 mph.
Tuesday Night
Mostly clear, with a low around 71. East northeast wind around 5 mph becoming calm in the evening.
Wednesday
Sunny, with a high near 96. West northwest wind around 5 mph.
Wednesday Night
Mostly clear, with a low around 69. Northeast wind around 5 mph becoming calm in the evening.
Thursday
Sunny, with a high near 98. Calm wind becoming southwest around 5 mph.
Thursday Night
Partly cloudy, with a low around 72. Southeast wind around 5 mph.
Friday
Mostly sunny, with a high near 97. South southwest wind around 5 mph.
Friday Night
Mostly cloudy, with a low around 73. Southeast wind around 5 mph.
Saturday
A 30 percent chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 93.
Saturday Night
A 30 percent chance of showers and thunderstorms. Partly cloudy, with a low around 71.
Sunday
A 50 percent chance of showers and thunderstorms. Partly sunny, with a high near 88.
Sunday Night
A 30 percent chance of showers. Partly cloudy, with a low around 70.
Monday
A 40 percent chance of showers and thunderstorms. Mostly sunny, with a high near 88.
Additional Forecasts and Information
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Forecast AreaABOUT THIS FORECAST
Point Forecast:
4 Miles SW San Marcos TX
29.86°N 97.99°W (Elev. 748 ft)
29.86°N 97.99°W (Elev. 748 ft)
6:50 pm CDT Sep 1, 2025
8pm CDT Sep 1, 2025-6pm CDT Sep 8, 2025
Additional Resources
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